Erdogan, Cem
Current rating: 1700 (#6516)
Record: 42-29-2 (GP) / 8-14-1 (professional)
| Regional Championships Athens 2023 (pioneer) | starting rating: 1708 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 207 | Brovida, Doriano (1580) | Lost 1-2 | -201688 |
| 2pioneer | 128 | Currò, Luca (1482) | Won 2-1 | +141702 |
| 3pioneer | 65 | Bonet, Sebastian (1521) | Won 2-0 | +151717 |
| 4pioneer | 69 | Torres, Eric (1516) | Lost 1-2 | -221695 |
| 5pioneer | 119 | Mendes, Telmo (1476) | Won 2-0 | +151710 |
| 6pioneer | 73 | Parisi, Alessandro (1780) | Won 2-0 | +191729 |
| 7pioneer | 42 | Sarioglu, Bora (1562) | Won 2-0 | +151744 |
| 8pioneer | 47 | Walsh, Jamie (1635) | Lost 1-2 | -201724 |
| 9pioneer | 75 | Gorzgen, Fabian (1956) | Won 2-0 | +221746 |
| 10pioneer | 43 | Roebuck, Alex (1570) | Won 2-1 | +151761 |
| 11pioneer | 24 | Szyinski, Piotr (1776) | Lost 0-2 | -181743 |
| 12pioneer | 36 | Leopold, Christian (1597) | Lost 1-2 | -211722 |
| 13pioneer | 42 | Birettoni, Luca (1537) | Lost 1-2 | -211701 |
| 14pioneer | 46 | Sodomirski, Tomasz (1796) | Lost 1-2 | -161685 |
| 15pioneer | 50 | hriz, soufian (1536) | Won 2-0 | +151700 |
| top | average opponent: 1621record: 8-7 | new rating: 1700 | ||
| Regional Championships Naples 2023 (ONE standard) | starting rating: 1656 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 233 | Santos, Diogo (1687) | Lost 1-2 | -171639 |
| 2standard | 210 | Soto, Gabriel (1508) | Lost 1-2 | -211618 |
| 3standard | 190 | Fajkus, Adam (1461) | Won 2-0 | +151633 |
| 4standard | 198 | Baumgaertner, Tobias (1448) | Won 2-0 | +151648 |
| 5standard | 81 | Tsopelas, Marios (1695) | Won 2-1 | +191667 |
| 6standard | 56 | Bolka, Aleksander (1536) | Won 2-1 | +161683 |
| 7standard | 64 | Colangelo, Gianluca (1610) | Won 2-0 | +161699 |
| 8standard | 19 | Boussaud, Eliott (1922) | Won 2-0 | +221721 |
| 9standard | 14 | Latorre, Francesco (1757) | Lost 1-2 | -171704 |
| 10standard | 27 | Cammilluzzi, Marco (1851) | Lost 1-2 | -151689 |
| 11standard | 45 | Christensen, Oscar (1827) | Lost 0-2 | -161673 |
| 12standard | 50 | Karsten, Frank (1842) | Won 2-1 | +211694 |
| 13standard | 40 | De Haan, Rob (1794) | Lost 0-2 | -161678 |
| 14standard | 50 | Oncina, Adolfo (1520) | Won 2-0 | +151693 |
| 15standard | 41 | De Wit, Wiebe (1547) | Won 2-0 | +151708 |
| top | average opponent: 1667record: 9-6 | new rating: 1708 | ||
| Grand Prix Madrid 2016 (KLD standard) | starting rating: 1628 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 197 | Vefa, Yusuf Kemal (1767) | Won 2-1 | +211649 |
| 4standard | 6 | Ingallinera, Daniele (1676) | Won 2-1 | +181667 |
| 5standard | 31 | Chan, Yu Pan Jacky (1701) | Lost 0-2 | -171650 |
| 6standard | 108 | Ball, Alexander (1767) | Draw 1-1 | +21652 |
| 7standard | 140 | Musat, Lucian (1576) | Draw 1-1 | -11651 |
| 8standard | 215 | Benczedi, Jozsef (1756) | Won 2-0 | +201671 |
| 9standard | 139 | Calafell, Joel (1851) | Lost 0-2 | -151656 |
| top | average opponent: 1728record: 3-2-2 | new rating: 1656 | ||
| Grand Prix Bologna 2016 (modern) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 293 | Fischer, Manuel (1469) | Won 2-0 | +161575 |
| 3modern | 147 | Badiali, Tommaso (1467) | Lost 1-2 | -201555 |
| 4modern | 454 | Hessens, Oliver (1564) | Won 2-0 | +191574 |
| 5modern | 317 | Ruggiu, Gianmaria (1605) | Won 2-0 | +181592 |
| 6modern | 117 | Kagawa, Mido (1855) | Lost 0-2 | -131579 |
| 7modern | 385 | Venerito, Vincenzo (1505) | Won 2-0 | +171596 |
| 8modern | 318 | Delisi, Riccardo (1494) | Won 2-0 | +161612 |
| 9modern | 214 | Mueller, Andreas (1589) | Lost 0-2 | -191593 |
| 10modern | 258 | Lagarde, Antoine (1727) | Won 2-0 | +211614 |
| 11modern | 214 | Longhi, Davide (1524) | Lost 0-2 | -201594 |
| 12modern | 257 | Lombardi, Michele (1401) | Won 2-0 | +151609 |
| 13modern | 192 | Deltour, Louis (1992) | Won 2-1 | +241633 |
| 14modern | 98 | Husges, Daniel (1603) | Won 2-0 | +181651 |
| 15modern | 85 | Gschwantner, Jan (1416) | Lost 1-2 | -231628 |
| top | average opponent: 1586record: 9-5 | new rating: 1628 | ||
| Grand Prix Milan 2014 (modern) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 218 | Michelone, Dario (1471) | Won 2-1 | +191466 |
| 2modern | 96 | Armani, Luca (1500) | Won 2-0 | +181484 |
| 3modern | 218 | Duarte, Carlos (1726) | Lost 1-2 | -131471 |
| 4modern | 237 | Kusar, Luka (1518) | Won 2-1 | +181489 |
| 5modern | 271 | Guerini, Giada (1489) | Won 2-1 | +181507 |
| 6modern | 204 | de Cesare, Lucio (1505) | Won 2-0 | +181525 |
| 7modern | 44 | Horvat, Vjeran (1931) | Lost 0-2 | -111514 |
| 8modern | 89 | Tong, Wu (1740) | Won 2-1 | +221536 |
| 9modern | 113 | Di Siero, Domenico (1568) | Won 2-1 | +191555 |
| 10modern | 84 | Lodato, Lucio (1591) | Won 2-0 | +191574 |
| 11modern | 29 | Prlic, Stefan (1760) | Lost 1-2 | -151559 |
| 12modern | 54 | Lehner, Bernhard (1828) | Lost 0-2 | -131546 |
| 13modern | 81 | Krasnitski, Mike (1868) | Won 2-0 | +241570 |
| 14modern | 38 | Stella, Alessandro (1599) | Lost 1-2 | -181552 |
| 15modern | 81 | Hottmann, Alex (1844) | Won 2-0 | +231575 |
| 16modern | 43 | Ornberg, Frej (1677) | Lost 1-2 | -161559 |
| top | average opponent: 1663record: 10-6 | new rating: 1559 | ||
| Pro Tour Geneva 2007 (PLC draft) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 90 | Blumer, Yann (1637) | Lost 0-2 | -151455 |
| 2draft | 112 | Fonseca, Tiago (1688) | Lost 1-2 | -141441 |
| 3draft | 179 | Keskitalo, Mikko (1585) | Lost 0-2 | -161425 |
| 4draft | 9 | Johnson, Tom (1541) | Won 2-0 | +211446 |
| 5draft | 68 | Galovic, Dusan (1475) | Lost 1-2 | -181428 |
| 6draft | 131 | Liao, Danny (1494) | Won 2-0 | +191447 |
| top | average opponent: 1570record: 2-4 | new rating: 1447 | ||
| 2006 World Championship (mixed) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 95 | Huttenberger, Christian (1815) | Lost 0-2 | -121504 |
| 2standard | 158 | Vefa, Yusuf Kemal (1364) | Won 2-1 | +151519 |
| 3standard | 103 | Chambers, Adam (1884) | Lost 0-2 | -121507 |
| 4standard | 115 | Mueller, Andre (1624) | Lost 0-2 | -161491 |
| 5standard | 150 | Stanilov, Ivko (1528) | Lost 0-2 | -171474 |
| 6standard | 155 | Madriz, Ricardo (1459) | Lost 1-2 | -181456 |
| 7draft | 83 | Kosarev, Artemiy V (1455) | Lost 0-2 | -181438 |
| 8draft | 113 | Carrizo, Isauro (1382) | Lost 0-2 | -191419 |
| 10draft | 5 | Stevenson, Craig (1403) | Won 2-1 | +181437 |
| 11draft | 128 | Carrizo, Isauro (1401) | Won 2-1 | +171454 |
| 12draft | 133 | Vefa, Yusuf Kemal (1328) | Won 2-0 | +161470 |
| 13extended | 131 | Bandou, Junichirou (1671) | Draw 1-1 | +31473 |
| 14extended | 123 | Grondahl, Erik (1741) | Lost 0-2 | -131460 |
| 15extended | 129 | Bongaards, Jasper (1538) | Won 2-0 | +191479 |
| 16extended | 118 | Kurihara, Shingou (1775) | Lost 0-2 | -121467 |
| 17extended | 125 | Roca Suarez, Diego (1525) | Won 2-1 | +191486 |
| 18extended | 113 | Kecojevic, Milutin (1590) | Lost 0-2 | -161470 |
| top | average opponent: 1558record: 6-10-1 | new rating: 1470 | ||
| Grand Prix Athens 2006 (TSP limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 23 | Liapatis, Theodoros (1538) | Won 2-1 | +191519 |
| 4sealed | 55 | Gomersall, Sam (1820) | Lost 0-2 | -131506 |
| 5sealed | 72 | Bracht, Maximilian (1746) | Lost 1-2 | -141492 |
| 6sealed | 103 | Saltas, Giannis (1522) | Won 2-0 | +191511 |
| 7sealed | 95 | Maaten, Rogier (1790) | Lost 0-2 | -131498 |
| 8sealed | 93 | Kiritsis, Nikos (1520) | Won 2-0 | +181516 |
| top | average opponent: 1656record: 3-3 | new rating: 1516 | ||